Vanishing spray seemed like such a simple concept at the World Cup, but it’s already causing problems for Premier League referees.

Jonathan Moss was the first man in black to struggle with the latest introduction to England’s top flight and Arsenal’s Santi Cazorla was the unfortunate victim, receiving a face full of the spray.

Moss was attempting to mark out a free-kick for the Gunners in their season opener against Crystal Palace but couldn’t get the can to work, before some vigorous shaking resulted in Cazorla copping the brunt of it.

Fortunately the Spaniard saw the funny side, but he didn’t vanish. So does the spray really work…?